Credit Suisse analysts on Tuesday said even if Russia and OPEC producers raise output, they would likely only add an additional 500,000 bpd, which would leave inventories in the most developed countries short of the five-year average by the end of 2018.

Charts show more pain possible for oil 9 Hours Ago | 01:10

The Organization of the Petroleum Exporting Countries is due to meet in Vienna on June 22.

Falling stocks and a stronger U.S. dollar index also weighed on oil prices. U.S. stock markets sank more than 1 percent, while the dollar wobbled at a 10-month high against the euro. A stronger dollar makes greenback-denominated commodities more expensive for holders of other currencies.

U.S. oil got some support as U.S. crude inventories likely fell by 1.8 million barrels last week, a preliminary Reuters poll showed on Tuesday.

Industry group American Petroleum Institute (API) releases its weekly oil data at 2030 GMT, followed by the report by U.S. Energy Department’s Energy Information Administration on Thursday, both delayed a day because of the federal Memorial Day holiday on Monday.